Home / 238,578.91-329,230.53-131,148.18

Finding the Fourth Proportional to 238,578.91, 329,230.53 and 131,148.18

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Solution

The fourth proportional to 238,578.91, 329,230.53 and 131,148.18 is: 180,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,578.91 : 329,230.53 = 131,148.18 : x
  2. Step 2: Convert to fraction form
    238,578.91/329,230.53 = 131,148.18/x
  3. Step 3: Cross multiply
    238,578.91x = 329,230.53 × 131,148.18
  4. Step 4: Simplify right side
    238,578.91x = 43,177,984,809.94
  5. Step 5: Solve for x
    x = 43,177,984,809.94/238,578.91
  6. Step 6: Final answer
    x = 180,979.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.